2019
DOI: 10.3390/app9204372
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3D Numerical Simulation of Rock Cutting of an Innovative Non-Planar Face PDC Cutter and Experimental Verification

Abstract: The low rock breaking efficiency of conventional polycrystalline diamond compact (PDC) bits in hard abrasive formations prompts the development of PDC cutting elements from the planar structure to the non-planar structure. As an innovative non-planar cutter, the design and research of the three-ridged diamond element (3-RDE) cutter is still in its infancy, and its rock breaking mechanism and laws are not yet clear. In this paper, a three-dimensional (3D) finite element model of dynamic rock breaking with 3-RDE… Show more

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Cited by 32 publications
(11 citation statements)
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References 21 publications
(25 reference statements)
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“…Therefore, it should be emphasized once again that abrasiveness is the susceptibility to abrasive wear of rocks. At the same time, abrasivity describes the rock's ability to destroy the surfaces of solid materials, mainly steel, but not only (WC-Co, PCD [77] etc. ).…”
Section: Discussionmentioning
confidence: 99%
“…Therefore, it should be emphasized once again that abrasiveness is the susceptibility to abrasive wear of rocks. At the same time, abrasivity describes the rock's ability to destroy the surfaces of solid materials, mainly steel, but not only (WC-Co, PCD [77] etc. ).…”
Section: Discussionmentioning
confidence: 99%
“…The development of digital and computer technologies has led to numerous studies involving simulations. Thus, paper [14] examined the interaction between rock and a diamond cutting element of the new type (3-RDE). The authors built a three-dimensional (3D) model of the dynamic rupture of rocks by a cutting element of the 3-RDE type.…”
Section: Literature Review and Problem Statementmentioning
confidence: 99%
“…According to the authors, Mechanical specific energy (MSE) is negligible between 0-and 30-degree side-rake angles, but can increase by threefold when the side-rake angle increases from 30 to 60 degrees. However, such values of side-rake angles are not applicable in PDC bits with circular cutters unless non-circular cutters with in-built side-rake angles (similar to cutters introduced in the work by Liu et al [18]) are implemented during manufacturing.…”
Section: Introductionmentioning
confidence: 99%
“…Recursive least squares estimation could be used to estimate equivalent cutter wear status on the basis of noisy measurements of the weight on the bit. The measurement noise is defined through parameters v. Writing Equation (18) for k noisy measurement of weight on bit as,…”
mentioning
confidence: 99%